[GTALUG] SSL Certs for both web and email servers

[ac]

On Mon, 30 Nov 2020 23:45:14 -0500
William Witteman via talk <talk at gtalug.org> wrote:
> Hi!
>
Hello
 
> Can I use the same SSL (from letsencrypt) cert for both web and email
> traffic?
> 
Yes

> I have three domains and a small but invariant number of subdomains
> that I want to encrypt - should I try to pull them all under one SSL
> cert, or do one for each domain, or one for every subdomain?  I don't
> need a wildcard, but I would like something relatively painless if
> possible.

yes, in your case, and for painless and easy, just use the domain name
and one cert. so, instead of mail.example.com and www.example.com 
- just use example.com. 

> I use Apache2 for web (running virtual servers) and Dovecot for
> inbound email.  There are a lot of old tutorials, but I haven't found
> one that answers my questions quite yet.
> Thanks!

just ask if you get stuck, many of us are able to just answer you directly

hth

Andre